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Physics
Page 67
Questions (146,311)
in the compton scattering event, the scattered photon has an energy of 120 keV and the recoiling e- has an energy of 40 keV.
4 answers
asked by
paul
959 views
a body projected with velocity 30m/s an angle 30¡ã with horizontal maximum height attained by he object is.........?
4 answers
asked by
yogesh
1,553 views
A 58 kg skier is coasting down a 250 slope. Near the top of the slope, her speed is 3.6 m/s. She accelerates down the slope
3 answers
asked by
Amiel
1,051 views
A ball sitting on the top of a table has potential energy but no kinetic energy.
How do potential and kinetic energy change as
3 answers
asked by
Sabina
1,066 views
Two point charges of +1.0 uC and -2.0 uC are located 0.50 m apart. What is the minimum amount of work needed to move the charges
3 answers
asked by
George
1,612 views
A pendulum consists of a 2.1 kg stone swinging on a 3.6 m string of negligible mass. The stone has a speed of 7.9 m/s when it
3 answers
asked by
Jake
582 views
Explain the following quote:
... it was several weeks before an emigrant from Earth could adapt to it. On the Moon the human body
3 answers
asked by
Kimmy
865 views
On a dare, you decide to try bungee jumping. You fall freely you are moving at 15 m/s downward. At that point the cord begins to
3 answers
asked by
Anonymous
496 views
A stretched wire 75cm long emits a fundamental frequency of 300Hz.By how much the length be changed so that it emits a
4 answers
asked by
geofrey
1,585 views
1. The centers of two 11.80 kg spheres are separated by 0.09 m. What is their gravitational attraction?
2. What is the ratio of
3 answers
asked by
Amanda
606 views
What is the repulsive force between two pith balls that are 12.0 cm apart and have equal charges of -39.0 nC?
3 answers
asked by
Justin
651 views
264.6 g of water is in a Styrofoam calorimeter of negligible heat capacity. The initial T of the water is 16.9oC. After 270.9 g
5 answers
asked by
Anonymous
763 views
A rifle fires a(n) 3 g bullet with a muzzle
velocity of 370 m/s into a block of wood. The bullet comes to rest after it has
3 answers
asked by
Anonymous
579 views
A hypodermic needle is 2.98 cm in length and 0.28 mm in diameter. What pressure difference between the input and output of the
3 answers
asked by
britt
816 views
A cylinder with a movable piston contains 2.00g of helium,He, at room temperature. More helium was added to the cylinder and the
3 answers
asked by
Kim
1,143 views
There is a legend of a Dutch boy who bravely held back the whole Atlantic Ocean by plugging a hole in a dike with his finger. Is
3 answers
asked by
please help me
1,264 views
A student throws a baseball vertically upward, and 2.8s later catches it at the same level. Neglecting air resistance ,
3 answers
asked by
Melissa
1,251 views
Which characteristic is constant for the car as it travels around the roundabout pictured below?
(1 point) Responses Position
7 answers
asked anonymously
188 views
a charge of + 2x10-7c is 10cm from a charge of -6x10-6c find magnitude and direction of force on each charge
4 answers
asked by
Carol
726 views
A football is kicked with an initial velocity of 25 m/s at an angle of 45 degrees with the horizontal . Determine the time of
4 answers
asked by
Allison
3,053 views
A canoe of mass 70 kg with a paddler of mass 55 kg are in a river. If the river's current exerts a force of 15 N [E] while the
4 answers
asked by
Jess
840 views
What is the longest wavelength for standing waves on a 238.0 cm long string that is fixed at both ends?
3 answers
asked by
Josh
586 views
Superwoman is hovering above the ground when a person free-falling goes by her at a terminal velocity of 140 km/h.
2 answers
asked by
Emily
980 views
A marble of mass m is placed on top of a bowling ball of radius r and allowed to roll from rest. derive the angle from centre of
3 answers
asked by
Andrew
805 views
4.80-kg watermelon is dropped (zero initial speed) from the roof of a 25.0-m-tall building. a) Calculate the work done by
3 answers
asked by
anton
2,060 views
Is it possible for the frictional force to increase the mechanical energy of a system? If so, give 2 examples with brief
3 answers
asked by
Sandhu
2,000 views
you drag a heavy box along a rough horizontal floor by a horizontal rope. Identify the reaction force to each of the following
2 answers
asked by
Sara
911 views
The forces acting on the arm of a person lifting a dumbbell. The force F is the force pulling on the hand due to the weight of
3 answers
asked by
physics student
2,325 views
A ball is kicked at an angle of 50 with a velocity of 14m/s.
a. how long is it in the air? b. how high does it rise? can someone
4 answers
asked by
Lauren
939 views
Given DIAGRAM 1.1 where FT means Tension and W means Weight, calculate the tension on the steel cable given the following
2 answers
asked anonymously
74 views
Please help me answer the question below and also show equations and steps of how you came to your answer. Thank you
1. The
4 answers
asked by
Jenny
1,465 views
1)An electron moved from point A to point B along an equipotential surface.
a)the eclectron performs work in moving from point A
4 answers
asked by
Andrea
1,460 views
If a monkey drops a banana off a cliff where are the potential and kinetic energies of the banana equal
A quarter of the way down
3 answers
asked anonymously
433 views
Newton's Second Law Quick Check
1 of 41 of 4 Items Question Blake and Drew are playing horseshoes. Blake takes the first turn,
7 answers
asked by
Answer
688 views
Find the required angular speed, ω, of an ultracentrifuge for the radial acceleration of a point 2.00cm from the axis to equal
4 answers
asked by
Anonymous
15,652 views
A glass cylinder with a radius of 7cm has water up to a height of 9cm. A mental cube of 5 1/2cm edge is immersed in it
6 answers
asked by
Anonymous
1,703 views
An ice cube is left on the kitchen counter. After some time, the ice cube melts into a small puddle of water.
According to the
3 answers
asked anonymously
56 views
1) Find the final velocity of the two balls if the ball with velocity
v2i = −21.0 cm/s has a mass equal to half that of the
4 answers
asked by
Tayler Jones
1,588 views
Consider the gravitational potential, kinetic, and total mechanical energies of a cart moving down an inclined ramp. (Also, let
4 answers
asked by
Tim
3,220 views
Gabriele enters an east-w straight bike path at the 3.0-km mark and rides w at a constant speed of 8.0 m/s. At the same time,
4 answers
asked by
Matt
2,729 views
A ball is dropped from the roof a building which is 256 m high. The height h of the ball at any instant t is described by
h(t) =
4 answers
asked by
malik
1,225 views
A Lamborghini sports car can accelerate from zero to 60 mph in 4 seconds. It can decelerate from 60 mph to rest in 120 ft. What
4 answers
asked by
Anonymous
3,199 views
Each charge of 3 micro coulomb are placed at 3 corners of a square whose diagonal is 6cm long. Find the field intensity at the
3 answers
asked by
bareera
1,113 views
i just want to know form where i got on this formula the 4.9t² on this formula s=4.9t²+Vot+h because the book only say that a
3 answers
asked by
steve Alexander
764 views
A beam of light is incident from air on the surface of a liquid. If the angle of incidence is 25.0° and the angle of refraction
4 answers
asked by
julie
1,125 views
4. What measurable property/properties affects the period of a pendulum?
7.Give another example of periodic motion other than
5 answers
asked by
Sherianna
753 views
Which observation is inconsistent with the ideal gas law?(1 point)
Responses When pressure is held constant and volume increases,
2 answers
asked by
blu
126 views
Kinetic and Potential Energy Quick Check
Science 8 Q1 / Energy of Motion An object falls through the air, gaining speed as it
11 answers
asked by
iuytredszdxcbnmjkjiu876543wq2asZxbnmkoiu8y76543wq2
576 views
The linear expansivity of a material of a cube is 12×10^-1/k if the length of each side of the cube is 10cm find the area of
2 answers
asked anonymously
79 views
A 120-MT concrete beam is lifted from the floor by two tandem heavy lift cranes up to a target height of 7.5 meters.
Calculate
2 answers
asked anonymously
66 views
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